焦炉上升管余热蒸汽在负压脱苯工艺中的应用探究  

Application on the Recovery of Waste Heat Steam from the Riser Tube of a Coke Oven in the Negative Pressure Debenzylated Process

作　　者：刘国伟[1] Liu Guowei(Coking Plant of Shougang Changzhi Iron&Steel Co.,Ltd.,Changzhi Shanxi 046000,China)

机构地区：[1]首钢长治钢铁有限公司焦化厂,山西长治046000

出　　处：《山西冶金》2024年第7期149-152,共4页Shanxi Metallurgy

摘　　要：在焦化苯类化产品回收生产中,利用管式炉燃烧焦炉煤气加热洗油进行脱苯。通过运行效果看,管式炉有明火,存在安全隐患;管式炉的高温加快洗油的变质速度,造成洗油消耗加大;管式炉消耗焦炉煤气,排烟温度高且含有害物质,存在污染环境等问题。鉴于此,寻找一种能替代管式炉加热洗油进行脱苯的持续、安全、环保的加热方式是近年来焦化行业攻关创新的方向之一。利用焦炉生产持续性、产生的焦炉煤气蕴含的热能持续输出且品位高、可回收高品质余热蒸汽等特点,对上升管余热回收项目建设及回收的焦炉上升管余热蒸汽在负压脱苯工艺中的应用进行论述。In the recovery and production of coking benzene products,a tube furnace is used to burn coke oven gas and heat wash oil for benzene removal.From the operation effect,it can be seen that there is an open flame in the tubular furnace,which poses a safety hazard.The high temperature of the tube furnace accelerates the deterioration rate of the washing oil,resulting in increased consumption of the washing oil.The tubular furnace consumes coke oven gas,has high exhaust temperature and contains harmful substances,and poses pollution problems.In view of this,finding a sustainable,safe,and environmentally friendly heating method that can replace tube furnace heating for oil washing for benzene removal has been one of the innovative directions in the coking industry in recent years.This article discusses the construction of a riser waste heat recovery project and the application of recovered coke oven riser waste heat steam in the negative pressure benzene removal process,utilizing the characteristics of sustained production of coke ovens,continuous output of thermal energy contained in the generated coke oven gas,high grade,and recyclable high-quality waste heat steam.

关 键 词：焦炉上升管 负压脱苯 余热回收 

分 类 号：TQ522.15[化学工程—煤化学工程]